Finding the Fourth Proportional to 12,901.76, 19,355.52 and 3,668.48

Step by Step Solution

1. Step 1: Write the proportion equation
   12,901.76 : 19,355.52 = 3,668.48 : x
2. Step 2: Convert to fraction form
   12,901.76/19,355.52 = 3,668.48/x
3. Step 3: Cross multiply
   12,901.76x = 19,355.52 × 3,668.48
4. Step 4: Simplify right side
   12,901.76x = 71,005,338.01
5. Step 5: Solve for x
   x = 71,005,338.01/12,901.76
6. Step 6: Final answer
   x = 5,503.54